[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Groff] read-only number register
From: |
SGT. Garcia |
Subject: |
Re: [Groff] read-only number register |
Date: |
Tue, 3 Mar 2015 10:53:50 -0500 |
User-agent: |
Mutt/1.5.23.1-rc1 (2014-03-12) |
On Mar 03 03:06 +0100, Ingo Schwarze wrote:
> > for example, what's a request?
>
> A request is a command that is built into the the roff language,
> somewhat similar to a reserved word in a programming language,
> except that it can only occur after a leading dot or apostrophe
> at the beginning of an input line.
>
> > how is it different from a macro?
>
> A macro is a user-defined command, analoguous to a user-defined
> function in a procedural programming language.
>
> > and why would one want to read the number register.
>
> That depends on which register; reading and manipulating registers
> is most often useful when defining your own macros.
>
> Yours,
> Ingo
thanks, ^that^ and sections 5.5 and 5.6 of groff explained it nicely.